FREQUENCY HISTOGRAM: NUMBER OF DIVES PER SIX HOUR 



SUMMARY PERIOD 

 PTT 839 



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PERIODS 1-4 COMBINED 

 # PERIODS = 116 

 total # dives =22,273 

 X = 192 sd = 54 



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 05:16-11 

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15 GMT (1) X=180 SD = 46 N = 29 

 15 GMT (2) X=193 SD = 51 N = 35 

 15 GMT (3) X=199 SD = 57 N = 29 

 15 GMT (4) X=196 SD=60 N = 23 



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NUMBER OF DIVES 



Figure 48. Frequency histogram of the number of dives during all 6-hour summary periods 

 for PTT #839. See note in Figure 42. 



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